點晶科技股�½有限公司
SILICON TOUCH TECHNOLOGY INC.
ST1155B
Application Notes
To increase system stability, it is suggestion to connect a resistor R
VDD
about 470Ω between
battery power and driver's VDD pin as shown on application circuit.
The power dissipated by the IC varies widely with the supply voltage, the output current, and
loading. It is important to ensure the application does not exceed the allowable power
dissipation of the IC package. The recommended motor driver power dissipation versus
temperature is depicted as follows:
Power Dissipation-Temperature
900
800
700
600
500
400
300
200
100
0
0
25
50
75
Ambient Temperature (
℃
)
100
125
Power Dissipation ( mW
)
ST1155B_SSOP16_A05.doc
Version: A.05
-5-
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